Semantic Segmentation of Eight Regions of Upper and Lower Limb Bones Using 3D U-Net in Whole-body CT Images
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- Wakamatsu Yuichi
- Graduate School of Information Science and Technology, Aichi Prefectural University
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- Kamiya Naoki
- Graduate School of Information Science and Technology, Aichi Prefectural University
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- Zhou Xiangrong
- Faculty of Engineering, Gifu University
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- Hara Takeshi
- Faculty of Engineering, Gifu University Center for Healthcare Information Technology(C-HiT), Tokai National Higher Education and Research System
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- Fujita Hiroshi
- Faculty of Engineering, Gifu University
Bibliographic Information
- Other Title
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- 全身 CT 画像における 3D U-Net を用いた上下肢骨 8 領域の自動認識
- ゼンシン CT ガゾウ ニ オケル 3D U-Net オ モチイタ ジョウ カシ ホネ 8 リョウイキ ノ ジドウ ニンシキ
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Abstract
<p>Purpose: Automated analysis of skeletal muscle in whole-body computed tomography (CT) images uses bone information, but bone segmentation including the epiphysis is not achieved. The purpose of this research was the semantic segmentation of eight regions of upper and lower limb bones including the epiphysis in whole-body CT images. Our targets were left and right upper arms, forearms, thighs, and lower legs. Method: We connected two 3D U-Nets in cascade for segmentation of eight upper and lower limb bones in whole-body CT images. The first 3D U-Net was used for skeleton segmentation in whole-body CT images, and the second 3D U-Net was used for eight upper and lower limb bones’ segmentation in skeleton segmentation results. Thirty cases of whole-body CT images were used in the experiment, and the segmentation results were evaluated using Dice coefficient with 3-fold cross-validation. Result: The mean Dice coefficient was 93% in the left and right upper arms, 89% in the left and right forearms, 95% in the left and right thighs, and 94% in the left and right lower legs. Conclusion: Although the accuracy of the segmentation results of relatively small bones remains a challenge, the semantic segmentation of eight regions of upper and lower limb bones including the epiphysis in whole-body CT images has been achieved.</p>
Journal
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- Japanese Journal of Radiological Technology
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Japanese Journal of Radiological Technology 76 (11), 1125-1132, 2020
Japanese Society of Radiological Technology
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Details 詳細情報について
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- CRID
- 1391412326419347328
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- NII Article ID
- 130007941341
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- NII Book ID
- AN00197784
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- ISSN
- 18814883
- 03694305
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- NDL BIB ID
- 030789416
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- PubMed
- 33229842
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- Text Lang
- ja
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- Data Source
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- JaLC
- NDL
- Crossref
- PubMed
- CiNii Articles
- KAKEN
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- Abstract License Flag
- Disallowed